Mica Paper

High-Resistance Mica Paper for Industry

Mica paper, derived from thin layers of natural or synthetic mica, offers several advantages across diverse applications. Its outstanding dielectric strength and excellent thermal stability make it a preferred choice for electrical insulation. Mica paper’s ability to withstand high temperatures without degrading or losing its insulating properties is crucial in applications involving electrical machinery, transformers, and power generation equipment.

The flexibility and conformability of mica paper contribute to its ease of use in various forms, including sheets and tapes. This makes it suitable for applications where complex shapes and tight spaces are common, such as insulating coils in motors or generators. The material’s resistance to moisture, chemicals, and UV radiation further enhances its durability and reliability in harsh environments.

Mica paper finds extensive use in the electrical and electronics industries, including in the manufacturing of cables, insulating tapes, and capacitor components. It is also employed in the construction of heating elements for household appliances and industrial equipment, where its thermal stability is crucial for sustained performance. In summary, the benefits of mica paper, including excellent electrical insulation, thermal stability, and versatility, make it a valuable material for a wide range of applications in the electrical and electronic sectors.

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Transform Your Projects with North America's Leading Mica Supplier

Why settle for less when you can partner with the best? Axim Mica leads as the #1 mica supplier in the US and Canada, setting standards with unparalleled dielectric strength and thermal endurance in our mica paper.

Inventory That Meets Demand

With the largest inventory in North America, we’re not just a supplier—we’re your reliable partner ready to fulfill even the most demanding orders. Trust in our capability to deliver top-grade mica paper, empowering your projects with premium quality and consistency.

Choose excellence. Choose Axim Mica.

About Mica Paper

Mica paper stands at the intersection of nature and innovation, offering both exceptional electrical insulation and robust thermal resistance.

It’s made with either natural or synthetic mica, which brings remarkable dielectric strength into play. This makes mica paper indispensable in protecting sensitive electrical systems against extreme temperatures.

Furthermore, mica paper shines where flexibility matters because it can fit into tight spaces or complex shapes, and still battle against moisture, chemicals, and UV light with unmatched resilience. Unsurprisingly, it’s one of the most reliable and efficient materials used across electrical machinery to the core of household appliances.

Mica Paper Properties and Composition

Mica paper boasts impressive insulation features due its micanite composition.

High Dielectric Strength

Excelling in electrical insulation, mica paper safely withstands high voltages, protecting equipment from electrical failure. This makes it paramount in the construction of capacitors and other high-voltage insulation applications.

Thermal Resistance

Capable of enduring temperatures up to 1800°F, mica paper maintains its integrity and insulating properties under extreme heat. This quality is essential for the thermal protection of electrical components in industries like automotive and aerospace.


The innate flexibility of mica paper allows for easy wrapping, folding, and molding around variable shapes and sizes. This adaptability is crucial for insulating coils in electric motors and generators, where precise fitments are necessary.

Weather Resistance

Mica paper's resilience to moisture, chemicals, and UV radiation adds to its lifespan and reliability, ensuring steady performance in harsh environmental conditions. It serves as a durable insulating layer in outdoor electrical installations and equipment exposed to chemical agents.

Durable Composition

Mica paper incorporates either natural or synthetic mica, bound together with a silicone resin. This combination leverages mica's natural thermal and electrical insulation properties, while enhancing its mechanical strength and flexibility

Technical Table for Mica Paper

Dielectric Strength
>20 kV/mm
Thermal Stability
-200°C to +1000°C
Chemical Resistance
Thickness Range
0.1mm to several mm (customizable)
Moisture Absorption
UV Resistance
Tensile Strength
Electrical Insulation
Fire Resistance
Non-flammable (up to specified temperatures)

Exact specifications can vary based on the type of mica paper and its processing. Always refer to product datasheets for precise details.

How Mica Paper is Made

The production of mica paper involves a refined process that leverages both the natural qualities of mica and modern manufacturing techniques:

Mica Selection

This process begins with the selection of high-quality mica, either natural or synthetic, chosen for its purity and insulative properties.


The selected mica is then pulverized into a fine powder, breaking it down into small flakes suitable for paper-making.


The mica flakes are suspended in water to create a slurry, similar to traditional paper-making processes.

Sheet Formation

The slurry is spread on a large screen and drained, forming a continuous mica sheet as the water evaporates.

Drying and Finishing

The formed sheets are then dried, and any necessary treatments (such as impregnation with a binder for added flexibility and strength) are applied.

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Mica Paper Applications

Mica paper’s superior insulative properties make it invaluable across a broad spectrum of uses like:

  • Electrical Insulation

    Ideal for high-voltage applications, mica paper insulates electrical components, preventing arcing and breakdowns.

  • Thermal Barrier

    Protects equipment in high-temperature environments, maintaining thermal stability without compromising performance.

  • Electronics Manufacturing

    Key material in creating barriers between electronic components, ensuring devices function safely and efficiently.

  • Industrial Machinery

    Serves as insulation in machines subjected to extreme heat or electrical stress, prolonging equipment lifespan.

  • Aerospace and Automotive

    Utilized in components that require high thermal resistance and electrical insulation within compact spaces.

Benefits and Advantages of Using Mica Paper for Your Projects

Mica paper is not just any insulation material; it brings a suite of benefits and advantages:

  • Exceptional Insulation

    Offers top-tier electrical and thermal insulation capabilities, safeguarding against breakdowns and overheating.

  • High Temperature Resistance

    Maintains integrity and performance at temperatures up to 1800°F, making it suitable for extreme conditions.

  • Environmental Resistance

    Stands up to moisture, chemicals, and UV light, ensuring durability in varying conditions.

  • Versatility

    Easily adapts to complex shapes and tight spaces, enhancing its applicability across diverse needs.

  • Safety

    Provides a reliable and safe solution by minimizing the risk of fire and electrical hazards.

Why Choose Axim Mica?

When selecting the best in mica-based insulation, here’s why Axim Mica stands out:

Unmatched Inventory

Home to the largest inventory in North America, we offer over 50+ specialized mica products, ready to complement your mica paper needs.

Immediate Availability

Most of our products are in stock, ensuring quick delivery and same-day shipping capabilities to keep your projects on schedule.

Expertise & Innovation

As North America's only ISO 9001:2015 Certified Mica Company, our commitment to quality is unmatched, with every product meeting the highest standards.

Custom Solutions

Boasting advanced in-house engineering and custom fabrication, we’ve tailored over 0 unique parts, completing numerous PPAPs to ensure our solutions fit your exact requirements.


We provide the most competitive pricing in the market, making high-quality mica materials accessible without compromising on performance.

Responsive Support

From procurement to final manufacturing, our fully integrated manufacturing facility allows unparalleled control over production, ensuring you receive the best in class customer service and technical support.

Choosing Axim Mica means partnering with a leader of over 20 years dedicated to excellence in thermal and dielectric mica insulation, crafted to perform in high-temperature applications across a variety of sectors, including aerospace, automotive, energy, and beyond.

About Axim Mica

Axim Mica specializes in advanced mica insulation solutions for high-temperature applications. Established as North America’s leading mica supplier for over 20 years, we’re dedicated to innovation, quality, and customer satisfaction.

With a client across 50 industries and more than 12,000 customers, we provide the largest inventory of superior mica products, tailored to meet the diverse needs of our global clientele.

Trust Axim Mica and gain a trusted, reliable, and cost-efficient supplier.

Quality Assurance: ISO Certified Mica Supplier

Axim Mica, North America’s sole ISO 9001:2015 certified mica supplier, consistently meets rigorous standards. This certification underlines our commitment to delivering superior mica products. With meticulous control over our manufacturing process, we ensure unparalleled quality, earning the trust of over 12,000 companies worldwide. Partner with Axim Mica for reliable, high-quality insulation solutions.

Customization Options

Axim Mica leads in providing custom-fit mica solutions tailored to your unique requirements. Our extensive inventory and in-house engineering capabilities enable us to offer personalized options, ensuring precision for every application.

Whether it’s specific shapes, sizes, or properties you need, our team is dedicated to delivering mica products that exactly match your project specifications.

Getting a Quote: 3-Step Process

Step 1: Reach Out

Contact us with your project's specifics. Whether it's an inquiry or a detailed product requirement, we're here to listen.

Step 2: Review and Consultation

Our team reviews your request and consults you to ensure we fully understand your needs, refining the details for precision.

Step 3: Receive Your Quote

We provide a personalized quote tailored to your project, combining competitive pricing with our expert advice.

At Axim Mica, obtaining a quote is straightforward and tailored to fit your unique needs, ensuring you move forward with confidence.

Frequently Asked Questions (FAQs)

Mica paper serves as a vital component in electrical and thermal insulation. It’s widely employed in high-voltage electrical applications, heating elements, and as an insulating layer in household appliances and industrial machinery due to its excellent dielectric strength and thermal stability.

Mica paper is produced by pulverizing mica minerals into fine flakes, mixing them with a binding agent, and forming sheets through a paper-making process. This is followed by drying and pressing to achieve the desired thickness and insulation properties.

Mica sheets are used in a variety of settings requiring high-temperature resistance and electrical insulation. This includes industries like aerospace, automotive, electronics, and energy, for components such as insulating supports, gaskets, and washers.

Absolutely. Mica paper is known for its exceptional thermal resistance, able to withstand continuous temperatures up to 1000°C (1832°F), making it perfect for applications exposed to extreme heat.